<template>
    <div class="login-container">
        <vue-particles
        class="login-background"
        color="#97D0F2"
        :particleOpacity="0.7"
        :particlesNumber="50"
        shapeType="circle"
        :particleSize="4"
        linesColor="#66b1ff"
        :linesWidth="1"
        :lineLinked="true"
        :lineOpacity="0.4"
        :linesDistance="150"
        :moveSpeed="3"
        :hoverEffect="true"
        hoverMode="grab"
        :clickEffect="true"
        clickMode="push">
        </vue-particles>
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on"
            label-position="left">

            <div class="title-container">
                <h3 class="title">金氏后台管理系统</h3>
            </div>

            <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon icon-class="user" />
                </span>
                <el-input ref="username" v-model="loginForm.username" placeholder="Username" name="username" type="text"
                    tabindex="1" auto-complete="on" />
            </el-form-item>

            <el-form-item prop="password">
                <span class="svg-container">
                    <svg-icon icon-class="password" />
                </span>
                <el-input :key="passwordType" ref="password" v-model="loginForm.password" :type="passwordType"
                    placeholder="Password" name="password" tabindex="2" auto-complete="on"
                    @keyup.enter.native="handleLogin" />
                <span class="show-pwd" @click="showPwd">
                    <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
                </span>
            </el-form-item>
            <el-form-item>
                <div style="display:flex">
                    <el-input placeholder="请输入4位验证码" v-model="loginForm.captcha"></el-input>
                    <span @click="getCaptchaOpen">
                        <img :src="codeImg" alt="" height="47px" />
                    </span>
                </div>
            </el-form-item>
            <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
                @click.native.prevent="handleLogin">登录</el-button>
            <div>

            </div>


        </el-form>
    </div>

</template>

<script>
import {
    validUsername
} from '@/utils/validate'
import {
    login,
    getCodeImage
} from '@/api/user'
export default {
    name: 'Login',
    data() {

        const validateUsername = (rule, value, callback) => {
            if (!validUsername(value)) {
                callback(new Error('Please enter the correct user name'))
            } else {
                callback()
            }
        }
        const validatePassword = (rule, value, callback) => {
            if (value.length < 6) {
                callback(new Error('密码不能输入小于6位'))
            } else {
                callback()
            }
        }
        return {
            codeImg: '',
            loginForm: {
                username: "admin",
                password: "123456",
                captcha: '',
                checkKey: 1629428467008,
                mode: 'none', //不要默认的错误提示
            },
            loginRules: {
                username: [{
                    required: true,
                    trigger: 'blur'
                }],
                password: [{
                    required: true,
                    trigger: 'blur',
                    validator: validatePassword
                }]
            },
            loading: false,
            passwordType: 'password',
            redirect: "/home",

        }
    },
    watch: {
        $route: {
            handler: function (route) {
                this.redirect = route.query && route.query.redirect
            },
            immediate: true
        }
    },

    methods: {
        showPwd() {
            if (this.passwordType === 'password') {
                this.passwordType = ''
            } else {
                this.passwordType = 'password'
            }
            this.$nextTick(() => {
                this.$refs.password.focus()
            })
        },
        async handleLogin() {
            let data = this.loginForm
            console.log(this.loginForm);
            let res = await login(data)
            console.log(res);
            if (res.code == 412) {
                this.$message({
                    type: 'info',
                    message: '验证码错误'
                });
            }
            else if (res.code ==500) {
                this.$message({
                    type: 'info',
                    message: '用户名或密码错误'
                });
            }
            window.localStorage.setItem('Access_Token', res.result.token)
            console.log(res.result.token);
            this.$router.push({
                path: "/home"
            })
        },
        async getCaptchaOpen() {
            let a = 1629428467008
            let res = await getCodeImage(a)
            console.log(res);
            if (res.code == 0) {
                this.codeImg = res.result
            }
        },

    },
    mounted() {
        let _self = this
        _self.getCaptchaOpen()

    }
}
</script>

<style lang="scss" >
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
        color: $cursor;
    }
}

/* reset element-ui css */
//下一个兄弟元素
noscript+div {
    height: 100%;
}

.login-container .login-form[data-v-37dfd6fc] {
    padding: 0 35px !important;
    top: 10%;
    background-color: #283443be;
    position: absolute;

}

.login-container {
    // background: url(https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fimg.zcool.cn%2Fcommunity%2F01639c586c91bba801219c77f6efc8.gif&refer=http%3A%2F%2Fimg.zcool.cn&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1668671492&t=9fb00a38bf75e8012930bf73ba3d9bfc) no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 100%;
    .login-background{
    background: linear-gradient(-180deg, #dcf2e6 0%, #ffffff 100%);
    z-index: -1; 
    position: absolute;
    
    width: 100%;
    height: 100%;
    }
    .el-input {
        display: inline-block;
        height: 47px;
        width: 85%;

        input {
            background: transparent;
            border: 0px;
            -webkit-appearance: none;
            border-radius: 0px;
            padding: 12px 5px 12px 15px;
            color: $light_gray;
            height: 47px;
            caret-color: $cursor;

            &:-webkit-autofill {
                box-shadow: 0 0 0px 1000px $bg inset !important;
                -webkit-text-fill-color: $cursor !important;
            }
        }
    }

    .el-form-item {
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        color: #454545;
    }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
    min-height: 100%;
    width: 100%;
    // background-color: $bg;
    
    .login-form {
        position: relative;
        width: 520px;
        max-width: 100%;
        padding: 160px 35px 0;
        margin: 0 auto;
        overflow: hidden;
    }

    .tips {
        font-size: 14px;
        color: #fff;
        margin-bottom: 10px;

        span {
            &:first-of-type {
                margin-right: 16px;
            }
        }
    }

    .svg-container {
        padding: 6px 5px 6px 15px;
        color: $dark_gray;
        vertical-align: middle;
        width: 30px;
        display: inline-block;
    }

    .title-container {
        position: relative;

        .title {
            font-size: 26px;
            color: $light_gray;
            margin: 25px auto 40px auto;
            text-align: center;
            font-weight: bold;
        }
    }

    .show-pwd {
        position: absolute;
        right: 10px;
        top: 7px;
        font-size: 16px;
        color: $dark_gray;
        cursor: pointer;
        user-select: none;
    }
}
</style>
